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he was the first scientist to isolate nucleic acid.

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He is credited with coining the term "nucleic acid" in 1889, replacing Friedrich Miescher's term "nuclein" when it was demonstrated that nuclein was acidic

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In 1928, through what is now known as the Griffith experiment, he proposed the presence of a transformative principle underlying bacterial transformation. The experiment paved the way for the discovery of DNA as a molecule containing genetic information.

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GEORGE WELLS BEADLE AND EDWARD LAWRIE TATUM

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GEORGE WELLS BEADLE AND EDWARD LAWRIE TATUM

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In a series of experiments in which X-ray-induced mutations on the fungus Neurospora crassa Beadle and Tatum were analyzed, they showed that these mutations caused modifications in particular enzymes involved in cellular metabolic pathways. Thus a direct link between genes and enzymatic reactions could be proven, developing the famous hypothesis "a gene, an enzyme"

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The experiment of Alfred D. Hershey and Martha Chase finally proves in 1952 that the genetic material consists of DNA and not proteins.

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It was an X-ray chemistry and crystallographer that made fundamental contributions to understanding the molecular structure of DNA, RNA, viruses, coal, and graphite. The discovery of the STRUCTURE of DNA helped scientists understand how the inheritance of genetic information worked.

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James Dewey Watson is an American biologist. Together with Francis Crick and Maurice Wilkins he received the Nobel Prize in Medicine in 1962 for discoveries about the molecular structure of nucleic acids and their significance in the mechanism of transferring gene information to living organisms.

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he was an American biochemist, winner of the Nobel Prize in Medicine in 1959 along with the Spaniard Severo Ochoa for his discoveries on the mechanisms of biological synthesis of deoxyribonucleic acid.

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Matthew Meselson and Franklin Stahl's 1958 experiment was instrumental in determining the semiconservative mechanism of DNA replication.

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was an American biochemist. He is known for unveiling the genetic code and for interpreting its role in protein synthesis.